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Multi-Document RAG Research Assistant

Enterprise Semantic Querying Across Unstructured Document Assets.

Production Review Grade

1. Problem Statement

Organizations run on hundreds of unmapped domain documents (PDFs, text payloads, scanned layouts) that hide answers to strategic questions. Standard text searches lack context, resulting in slow exploration, missed data correlations, and inaccurate summaries.

2. Solution Overview

This system implements an advanced Retrieval-Augmented Generation (RAG) architecture. It uses custom tokenization and text splitters to index data into high-dimensional vector layouts, providing precise and grounded text synthesis that eliminates model hallucinations.

3. Technical Architecture

The platform loads documents, applies mathematical chunking, transforms text into vectors via OpenAI embeddings, and retains reference indices within ChromaDB.

[ Document Source ] ➔ [ Recursive Splitting ] ➔ [ Vector Embeddings ] ➔ [ ChromaDB Store ] ➔ [ Context Gen LLM ]

Conceptual Pipeline Model Link

4. Individual Contribution

  • Built the multi-threaded extraction logic using PyMuPDF to parse dense corporate data assets.
  • Designed the metadata tagging layer to restrict semantic search filtering across dynamic scopes.
  • Constructed the interactive frontend user application utilizing Streamlit components.

5. Technology Stack

LangChain ChromaDB OpenAI API Streamlit Python

6. Challenges Faced

Challenge: Global document tables collapsed into incoherent text strings when running basic text processing splits.
Resolution: Integrated strategic section boundary chunking hooks, keeping tabular context aligned with historical headings.

7. Key Learnings

Learned the importance of matching chunk sizes to specific document types. Learned that modifying semantic thresholds directly impacts validation metrics in live RAG frameworks.

8. Impact & Results

Cut internal document review cycles down from hours to immediate automated queries, preserving full data source citations for compliance verification.

9. Media Showcase

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[ Video walkthrough Embedding ]